Well, I don't know what happened, but the entire host became unresponsive around 4am this morning. Can't get to the site at the moment, but this thing is really trying my patience.
Other than the ONE VM misbehaving, I think I get it fixed and now the whole darn host goes offline (can't ping it, can't remote into it using vSphere, nada)
I'm trying not to flip out until I figure out if someone yanked the power cord on accident...